Borrowing it
Nothing to install: this file belongs to testivai/testivai-oss. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/testivai/testivai-oss/main/CLAUDE.mdgit clone --depth 1 https://github.com/testivai/testivai-ossWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/testivai/testivai-oss/claude-md)<a href="https://agentmods.dev/instructions/testivai/testivai-oss/claude-md"><img src="https://agentmods.dev/badge/instructions/testivai/testivai-oss/claude-md.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02303 | $0.02303 |
| Opus 5 | $0.01151 | $0.01151 |
| Sonnet 5 | $0.00461 | $0.00461 |
| Haiku 4.5 | $0.00230 | $0.00230 |
Grade A, and why
testivai-oss CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 193 lines — stays where its author put it; the contents beside it link to each section on GitHub.
testivai-oss — Claude Code Guide
This is the public open-source repository for the TestivAI SDKs. All packages here enable fully local visual regression testing — no account, no API key, no server.
Repo layout
packages/
witness/ @testivai/witness — core SDK: CLI, diff engine, baselines, HTML report
playwright/ @testivai/witness-playwright — Playwright reporter + capture adapter
webdriverio/ @testivai/witness-webdriverio — WebdriverIO service + capture
selenium/ @testivai/witness-selenium — Selenium WebDriver capture adapter
mcp/ @testivai/mcp — MCP server: results + diff images for AI agents (read-only; no approve tool by design)
action/ testivai/testivai-oss@v1 — GitHub Action: post PR comment + commit status
approve/ testivai/testivai-oss/approve@v1 — GitHub Action: /testivai approve command handler
examples/ minimal working examples per framework
docs/ public Markdown documentation
e2e/ OSS smoke E2E test suite
Package manager
pnpm (version set in packageManager field of root package.json).
Never use npm or yarn inside this repo. Use pnpm for all installs, builds, test runs.
Common commands
pnpm install # install all workspace deps
pnpm lint # biome lint (lint-only; no formatter)
pnpm build # tsc compile all packages
pnpm test # run unit tests across all packages (jest)
pnpm e2e # run OSS smoke E2E suite
pnpm pack:dry # dry-run npm publish to validate artifacts
pnpm changeset # add a new changeset entry (use before PRs that change public API)
pnpm version-packages # bump versions from changesets (run by CI, rarely manual)
pnpm release # publish to npm (run by CI release workflow only)
Architecture — how the OSS lane works
User writes test
→ calls testivai.witness(page, testInfo, 'my-snapshot')
→ @testivai/witness-playwright captures screenshot via Playwright native API
→ @testivai/witness BaselineStore:
first run → writes .testivai/baselines/<name>/{screenshot.png, dom.html, metadata.json}
later runs → writes .testivai/temp/<name>/{screenshot.png, dom.html, metadata.json}
then pixel-diffs baseline vs temp
then DOM-diffs baseline.dom.html vs temp.dom.html
→ reporter writes visual-report/results.json + visual-report/index.html
CI (GitHub Actions):
→ testivai/testivai-oss@v1 reads results.json, posts PR comment + commit status
bundles .testivai/temp/ → visual-report/pending-baselines/
uploads testivai-visual-report artifact
→ developer posts /testivai approve [name|--all] in PR comment
→ testivai/testivai-oss/approve@v1 verifies commenter write access
downloads artifact, copies pending-baselines → .testivai/baselines/
commits updated baselines back to PR branch
CI re-runs → passes
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 193 lines · 2,303 tokens per session scan A 90cd67e21bc9
testivai-oss CLAUDE.md is an instructions file published in the GitHub repository testivai/testivai-oss (3 stars, last pushed 6d ago), licensed MIT. It adds 2,303 tokens to every session, about $0.0115 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.